JP4749217B2 - Group call notification method and mobile station - Google Patents

Description

  The present invention is connected to a packet-switched network with an initial group as a group including an originating mobile station that is an originating mobile station and a designated mobile station that is a plurality of mobile stations designated by the originating mobile station. The present invention relates to a group call notification method and a mobile station used in a group call performed via a server.

  Conventionally, there is known a “group call” in which voice communication is performed through a packet-switched network, with a group of an originating mobile station and a plurality of mobile stations designated by the originating mobile station (hereinafter designated mobile stations) as an initial group. ing.

  In a group call, a SIP server connected to the packet switching network performs call control of each mobile station participating in the group call using SIP (Session Initiation Protocol).

  Specifically, the originating mobile station transmits a plurality of designated mobile station call requests (INVITE) to the SIP server.

  Here, in order for each designated mobile station to receive a call request (INVITE) from the originating mobile station from the SIP server, each designated mobile station is required to log in (register) with the SIP server. However, each designated mobile station is not always logged into the SIP server.

  Therefore, when the SIP server receives a call request (INVITE) of the designated mobile station from the originating mobile station, the SIP server requests the designated mobile station to log in to the SIP server (SMS (Short Message Service) information). Is sent to the SMS server connected to the circuit switching network. Subsequently, the SMS server transmits SMS information for requesting login to the SIP server to each designated mobile station. The designated mobile station that has received the SMS information receives the call request (INVITE) from the originating mobile station by logging in to the SIP server. The designated mobile station receives the call request (INVITE) from the originating mobile station, thereby receiving information on each mobile station included in the initial group and grasping each mobile station.

  As described above, in a group call, a calling party mobile station starts a group call by transmitting a call request (INVITE) designating a plurality of mobile stations to the SIP server. The designated mobile station that has received the call request (INVITE) from the originating mobile station participates in the group call by responding to the SIP server (transmitting 200 OK).

  On the other hand, designated mobile stations that are mobile stations included in the initial group but have not participated in the group call by being invited from the mobile stations participating in the group call (participating mobile stations) to participate in the group call halfway. (Unparticipating mobile stations) and mobile stations not included in the initial group can participate in the group call halfway.

Specifically, the participating mobile station invites a non-participating mobile station or a mobile station not included in the initial group to participate in the group call by transmitting a call request (INVITE).
“SIP: Session Initiation Protocol”, RFC3261

  However, if the non-participating mobile station is located outside the circuit-switched network area and has not been able to receive the SMS information, the non-participating mobile station Not aware that the included group call has started.

  In addition, when the non-participating mobile station is located outside the area of the packet switching network and is a designated mobile station that has not been able to log in to the SIP server, the non-participating mobile station Even if it is noticed that the group call included is started, it is impossible to grasp other mobile stations other than its own station included in the initial group.

  Therefore, if a non-participating mobile station is located outside the area of the circuit switching network or outside the area of the packet switching network, of course, the local station grasps the mobile station participating in the group call included in the initial group. I can't do that either.

  Further, when the non-participating mobile station is a designated mobile station that has not responded (transmitted 200 OK) even when it receives a call request (INVITE) from the calling-side mobile station, that is, the non-participating mobile station performs circuit switching When the mobile station is located in the network area and the packet-switched network area, all the mobile stations included in the initial group can be grasped, but the non-participating mobile station makes the call request (INVITE). The mobile station that is participating in this group call cannot be grasped unless it participates in the group call started by responding to.

  In particular, in the case of a system in which unparticipating mobile stations or mobile stations that are not included in the initial group can participate in group calls halfway through invitations from participating mobile stations, group calls in which the local station is included in the initial group Even so, there was a problem that it was not possible to participate in this group call from the middle and grasp the participating mobile stations.

  Therefore, the present invention has been made in view of the above points, and even if it is a non-participating mobile station that has not participated in the group call, the mobile station can grasp the mobile stations that are participating in the group call included in the initial group. It is an object of the present invention to provide a group call notification method and a mobile station that can be performed.

According to a first aspect of the present invention, when a group call is started by specifying a plurality of members, the members who participate in the group call among the specified members are managed, and the members among the specified members are Upon receiving the members of the inquiry from members who do not participate in the group call participating in the group call, on the basis of the management to group call participating members of the information is, to the members who carried out the inquiry, said The gist of the present invention is a group call notification method for notifying information on members participating in the group call in association with the designated member .

  According to this feature, even if a member does not participate in a group call (unparticipating mobile station), information on members (participating mobile stations) participating in a group call that specifies the local station is acquired. can do.

According to a second aspect of the present invention, there is provided transmitting means for transmitting a request for inquiring whether or not a group call specifying the own station has been started, using identification information for identifying the own station, and In response to the transmitted inquiry request, an acquisition unit that acquires information about a group call that specifies the local station, and based on the information about the group call that specifies the local station acquired by the acquisition unit , The gist is that the mobile station includes display means for displaying initial members of the group call .

A third aspect of the present invention, by using the identification information for identifying the local station, transmitting means for transmitting a request for inquiring whether to specify the own station and has a group call is initiated by the transmitting means an acquisition unit configured to acquire information about the group call in response to the transmitted inquiry request specifying the own station, a storage means for storing information of the incoming call history, wherein the acquisition unit, the query request The gist of the present invention is that the mobile station stores in the storage means information relating to a group call that specifies the own station acquired correspondingly as an incoming call history.

In the third feature of the present invention, a request for starting a new group call is generated using the information related to the group call specifying the own station stored in the storage means as an incoming call history, and a call is made. Calling means may be provided.
A fourth feature of the present invention is a mobile station that has not received a call request for a group call, and has started a group call specifying the own station using identification information for identifying the own station. A transmission means for transmitting a request for inquiring whether or not, an acquisition means for acquiring information relating to a group call designating the local station in response to the inquiry request transmitted by the transmission means, and the acquisition means acquired by the acquisition means The gist of the present invention is that the mobile station comprises display means for displaying information relating to a group call specifying the own station.

  ADVANTAGE OF THE INVENTION According to this invention, even if it is the non-participating mobile station which has not participated in the group call, the group call notification method which enables the self-station to grasp the participating mobile stations of the group call included in the initial group and A mobile station can be provided.

(Schematic configuration of wireless communication network)
With reference to FIG. 1, a schematic configuration of the wireless communication network 1 according to the present embodiment will be described.

  In this specification, the group call is mainly voice communication between a plurality of terminals, such as PTT (Push-to-Talk), which is a kind of VoIP (Voice over IP) communication, and video conference call, and voice communication and video. And the like configured by merging non-voice communications such as.

  As shown in FIG. 1, the wireless communication network 1 includes an SIP server 400 and an SMS (Short Message Service) server 500. In addition, a plurality of mobile stations 100 (mobile stations 100A to 100C) according to the present embodiment are connected to the SIP server 400 via the base station 200a and the packet switching network 300a, and via the base station 200b and the circuit switching network 300b. It is configured to be connectable to the SMS server 500.

  In the packet switching network 300a, a group including one mobile station 100 (originating mobile station) and another mobile station 100 (designated mobile station) designated by the one mobile station 100 is set as an initial group via the SIP server 400. Thus, a group call is performed by a plurality of mobile stations 100 (members).

  Note that in a group call, one mobile station 100 (originating mobile station) transmits a call request (INVITE) of another mobile station 100 (designated mobile station) designated by the one mobile station 100 to the SIP server 400. Then, the other mobile station 100 (designated mobile station) starts by responding to the call request (INVITE).

  Hereinafter, in the present embodiment, the mobile station 100A is a calling mobile station that is a mobile station that is the outgoing call side of a group call, and the mobile stations 100B and 100C are designated mobile stations that are a plurality of mobile stations designated by the calling mobile station. That is, a group call is performed with the mobile stations 100A to 100C as the initial group mobile stations included in the initial group. In addition, the mobile stations 100A and 100B are described as participating mobile stations that are mobile stations participating in the group call, and the mobile station 100C is described as an unparticipating mobile station that is not participating in the group call.

  The SMS server 500 connected to the circuit switching network 300b provides a message service (short message service), and has a function capable of sending and receiving SMS information to and from the mobile stations 100A to 100C via the circuit switching network.

  Here, the SMS information is, for example, information for requesting login to the SIP server 400 (push type SMS (login request)).

  Further, the SMS server 500 receives an SMS information transmission request (SMS transmission request) requesting login to the SIP server 400 from the SIP server 400.

(Configuration of SIP server)
The configuration of the SIP server 400 used in the wireless communication network 1 will be described with reference to FIG.

  As shown in FIG. 2, the SIP server 400 includes a group call management DB 410, a call control processing unit 420, a group registration unit 430, a search unit 440, and an inquiry processing unit 450.

  Hereinafter, portions related to the present invention will be mainly described. Therefore, it should be noted that the SIP server 400 may include a logical block (such as a power supply unit) that is essential for realizing the function as the SIP server 400 and that is not illustrated or omitted.

  The group call management DB 410 stores information shown in FIG. 3 as group call information for managing the mobile stations 100A to 100C that perform group calls.

  Here, the group call information is the identification information of the calling mobile station stored in association with the group call management DB 410, the transmission date and time (start date and time), the initial member identification information, the participating member identification information, the group call The status is collectively referred to.

  As shown in FIG. 3, the group call management DB 410 stores the caller side mobile station identification information, the transmission date and time, the initial member identification information, the participating member identification information, and the group call status in association with each other. Is.

  Here, the transmission date and time (start date and time) is the date and time when the calling mobile station (for example, the mobile station 100A) transmits a call request (INVITE) of the designated mobile station (for example, the mobile stations 100B and 100C), that is, the transmission This is the date and time when the group call is started with the side mobile station and the designated mobile station as the initial group. The group call is uniquely specified by the identification information of the caller mobile station and the call date / time.

  The initial member identification information is identification information of initial group mobile stations (for example, mobile stations 100A to 100C) that are mobile stations included in the initial group. The identification information of participating members is identification information of participating mobile stations (for example, mobile stations 100A and 100B).

  The above-mentioned identification information of the originating mobile station, the identification information of the initial member, and the identification information of the participating mobile stations are, for example, a telephone number, an E-MAIL address, and an IP address acquired by login processing to the SIP server. Etc.

  The group call status is a status for identifying whether the group call is ongoing or has been completed.

  The call control processing unit 420 performs call control of the mobile stations 100A to 100C that perform group calls. Specifically, the call control processing unit 420 transmits / receives SIP information to / from the mobile stations 100A to 100C.

  Here, the SIP information is a call request (INVITE) from the originating mobile station to the designated mobile station, a call request (INVITE) from the participating mobile station to an unparticipating mobile station, or a call request (INVITE) to the own station. ) Transmission request (INFO). The SIP information is various messages (100 Trying, 180 Ringing, 200 OK, ANSEWER, etc.) used in SIP.

  Note that the call request (INVITE) from the originating mobile station to the designated mobile station includes the originating mobile station identification information, the above-mentioned originating date and time, and the initial member identification information.

  When the call control processing unit 420 receives a call request (INVITE) of the designated mobile station from the originating mobile station, the call control processing unit 420 sends an SMS information transmission request (SMS transmission request) requesting login to the SIP server 400 to the SMS server 500. Send to.

  The group registration unit 430 adds, deletes, and updates group call information to the group call management DB 410.

  Specifically, the group registration unit 430 includes the identification information of the calling mobile station included in the call request (INVITE) for calling the designated mobile station from the calling mobile station received by the call control processing unit 410, the transmission date and time And the identification information of the initial member are stored in the group call management DB 410 in association with each other. At this time, the group registration unit 430 registers the identification information of the originating mobile station in the group call management DB 410 as the identification information of the participating members.

  In addition, when the call control processing unit 420 receives a response (200 OK) to the call request (INVITE) from the calling mobile station from the designated mobile station, the group registration unit 430 includes the identification information of the participating members described above. Add identification information of the specified mobile station.

  Similarly, the group registration unit 430 receives the response (200 OK) to the call request (INVITE) of the non-participating mobile station made by the participating mobile station by the call control processing unit 420 from the non-participating mobile station. The identification information of the responding mobile station is added to the identification information of the participating members.

  Furthermore, when the call control processing unit 420 receives a BYE from a participating mobile station, the group registration unit 430 deletes the identification information of the mobile station that has left from the identification information of the participating members.

  The search unit 440 refers to the group call management DB 410 and searches for identification information that matches the identification information of the non-participating mobile station received by the inquiry processing unit 450 described later from the identification information of the initial member. In addition, the search unit 440 uses the group call management DB 410 to identify the originating mobile station identification information, the transmission date and time, the initial member identification information, and the participating member identification information associated with the matching identification information of the non-participating mobile stations. It is possible to extract the group call status.

  The inquiry processing unit 450 receives an inquiry request for inquiring information on a group call including the own station as an initial group from an unparticipating mobile station (mobile station 100C). The inquiry request includes identification information of a nonparticipating mobile station.

  The inquiry processing unit 450 transmits the group call information extracted by the search unit 440 to the non-participating mobile station (mobile station 100C).

  In this embodiment, the group call management DB 410, the call control processing unit 420, the group registration unit 430, the search unit 440, and the inquiry processing unit 450 are described as functions of the SIP server 400. However, the present invention is not limited to this. It may be configured in combination with a server.

(Configuration of mobile station)
The configuration of the mobile station 100 used in the wireless communication network 1 will be described with reference to FIGS.

  Since mobile station 100A to mobile station 100C have the same configuration, hereinafter, these will be collectively referred to as mobile station 100.

  As shown in FIG. 4, the mobile station 100 includes an antenna 101, an RF / IF converter 102, a power amplifier 103, an audio input / output unit 104, a video input / output unit 105, a codec unit 106, and a baseband. A processor 107, an operation unit 108, a memory 109, and a CPU 110 are included.

  The antenna 101 receives signals (reception signals) transmitted by the base stations 200a and 200b connected to the packet switching network 300a and the circuit switching network 300b. The antenna 101 transmits a signal (transmission signal) to the base stations 200a and 200b connected to the packet switching network 300a and the circuit switching network 300b.

  The RF / IF converter 102 converts the frequency (radio frequency) of the reception signal received by the antenna 101 into a frequency (intermediate frequency (Intermediate Rfrequency)) handled by the baseband processor 107. The RF / IF converter 102 converts the frequency (intermediate frequency (IF)) of the transmission signal acquired from the baseband processor 107 into a frequency (radio frequency (RF)) used in wireless communication. The RF / IF converter 102 inputs the transmission signal converted into the radio frequency (RF) to the power amplifier 103.

  The power amplifier 103 amplifies the transmission signal acquired from the RF / IF converter 102 and inputs the amplified transmission signal to the antenna 101.

  The voice input / output unit 104 includes a microphone 104a that collects voice and a speaker 104b that outputs voice. The microphone 104 a inputs an audio signal to the codec unit 106 based on the collected audio, and the speaker 104 b outputs an audio based on the audio signal acquired from the codec unit 106.

  The video input / output unit 105 includes a camera 105a that captures an image of a subject and a display unit 105b that displays characters, videos, and the like. The camera 105 a inputs a video signal to the codec unit 106 based on the captured video (still image or moving image), and the display unit 105 b displays the video based on the video signal acquired from the codec unit 106. The display unit 105b also displays characters input using the operation unit 108.

  In the present embodiment, the display unit 105b, as shown in FIG. 8, based on an instruction from the CPU 110, the group call information received from the SIP server 400 (the presence / absence of presence (start) of a group call designating at least its own station) Is displayed.

  The codec unit 106 includes an audio codec unit 106a that encodes and decodes an audio signal in accordance with a predetermined encoding method (for example, EVRC), a predetermined encoding method (for example, MPEG (Moving Picture coding Experts Group) -4, and the like. ) And a video codec unit 106b for encoding and decoding a video signal.

  The audio codec unit 106 a encodes the audio signal acquired from the audio input / output unit 104 and decodes the audio signal acquired from the baseband processor 107. The video codec unit 106 b encodes the video signal acquired from the video input / output unit 105 and decodes the video signal acquired from the baseband processor 107.

  The baseband processor 107 modulates a transmission signal and demodulates a reception signal according to a predetermined modulation scheme (BPSK (Binary Phase Shift Keying), QPSK (Quadrature Phase Shift Keying)), or the like. Specifically, the baseband processor 107 modulates a baseband signal such as an audio signal or a video signal acquired from the codec unit 106, and sends the modulated baseband signal (transmission signal) to the RF / IF converter 102. input. Further, the baseband processor 107 demodulates the received signal acquired from the RF / IF converter 102 and inputs the demodulated received signal (baseband signal) to the codec unit 106.

  The baseband processor 107 modulates information (SMS information, SIP information and inquiry request) generated by the CPU 110 and inputs the modulated information (transmission signal) to the RF / IF converter 102. The baseband processor 107 demodulates the received signal acquired from the RF / IF converter 102 and inputs the demodulated received signal (SMS information, SIP information, or group call information) to the CPU 110.

  The operation unit 108 includes input keys for inputting characters and numbers, a call key for starting a group call, a response key for responding to an incoming call (calling), an inquiry key for making an inquiry about a group call, and the like. It is a group of configured keys. Further, when each key is pressed, the operation unit 108 inputs an input signal corresponding to the pressed key to the CPU 110. Inquiries can be handled with soft keys or the like.

  The memory 109 stores a program for controlling the operation of the mobile station 100, various data such as an incoming call history and an address book. Note that the memory 109 is configured by, for example, a flash memory that is a nonvolatile semiconductor memory, an SRAM (Static Random Access Memory) that is a volatile semiconductor memory, or the like.

  Specifically, the memory 109 stores identification information of the mobile station 100. Here, the identification information of the mobile station 100 includes the telephone number of the mobile station 100, the E-MAIL address of the mobile station 100, the IP address of the mobile station 100 acquired by the login process to the SIP server, and the like.

  The memory 109 stores an incoming call history. Note that the memory can be constituted by a removable memory.

  In the incoming call history, the group call information is similar to the group call management DB 410 of the SIP server 400 described with reference to FIG. , Identification information of participating members, and group call status are stored in association with each other.

  The incoming call history is updated based on the call request (INVITE) from the originating mobile station received from the SIP server 400. The incoming call history is updated based on the group call information received from the SIP server 400.

  The CPU 110 controls the operation of the mobile station 100 (video input / output unit 105, codec unit 106, baseband processor 107, etc.) according to a program stored in the memory 109.

  FIG. 5 is a block diagram illustrating a configuration of the CPU 110 according to the present embodiment.

  As shown in FIG. 5, the CPU 110 includes a group call processing unit 111, an inquiry processing unit 112, an incoming call history update unit 113, and a midway participation processing unit 114.

  The group call processing unit 111 performs processing related to the group call in accordance with SIP (Session Initiation Protocol).

  For example, the group call processing unit 111 performs a process of responding to a call from another mobile station 100 in accordance with an input signal acquired from the operation unit 108. Specifically, the group call processing unit 111 generates SIP information (180 Ringing, 200 OK, etc.) according to the SIP information acquired from the baseband processor 107 (calling request (INVITE) from the originating mobile station). Then, the generated SIP information is input to the baseband processor 107.

  Further, the group call processing unit 111 performs a process (so-called redial) for calling an initial member of the ended group call based on the incoming call history stored in the memory 109 with the mobile station 100 as the calling-side mobile station. Specifically, the group call processing unit 111 performs SIP information (call request (INVITE) of the initial member of the ended group call, i.e., the initial member of the ended group call) based on the incoming call history stored in the memory 109. A new group call start request), and the generated SIP information is input to the baseband processor 107.

  Further, the group call processing unit 111 acquires the SMS information (SMS (login request)) received from the SMS server 500 from the baseband processor 107. The group call processing unit 111 performs a login process (registration process) to the SIP server 400.

  The inquiry processing unit 112 performs a process for inquiring information about group calls in which the mobile station 100 is included in the initial group.

  Specifically, the inquiry processing unit 112, based on the input signal from the operation unit 108, information on the group call including the mobile station 100 in the initial group (at least the presence (start of the group call specifying the own station). Inquiry request for requesting acquisition of) is generated. Further, the inquiry processing unit 112 includes the identification information of the mobile station 100 stored in the memory 109 in the inquiry request. The inquiry processing unit 112 inputs the generated inquiry request to the baseband processor 107.

  The inquiry request is transmitted to the SIP server 400 as a message (INFO message or the like) used in SIP via the packet switching network 300a.

  Further, the inquiry processing unit 112 acquires the group call information transmitted from the SIP server 400 from the baseband processor 107.

  Further, the inquiry processing unit 112 displays information as shown in FIG. 8 on the display unit 105b based on the acquired group call information.

  The incoming call history update unit 113 updates the incoming call history stored in the memory 109 based on the acquired group call information.

  The midway participation processing unit 114 performs processing for participating in the group call midway based on the input signal from the operation unit 108.

  Specifically, the midway participation processing unit 114 generates a call request (INVITE) transmission request (INFO) to the mobile station 100 based on the identification information of the participating mobile stations stored in the memory 109 as the incoming call history. Then, the generated SIP information (INFO) is input to the baseband processor 107.

  Specifically, the midway participation processing unit 114 generates SIP information (180 Ringing, 200 OK, etc.) according to the SIP information acquired from the baseband processor 107 (calling request (INVITE) from the participating mobile station). Then, the generated SIP information is input to the baseband processor 107.

(Communication method)
Hereinafter, the communication method according to the present embodiment will be described with reference to FIGS.

  First, with reference to FIG. 6, a process for starting a group call with the mobile station 100A as the originating mobile station and the mobile stations 100A to 100C as the initial group will be described.

  As shown in FIG. 6, in step S101, the mobile station 100A designates the mobile stations 100B and 100C, and forms an initial group including the mobile stations 100A to 100C.

  In step S102, the mobile station 100A transmits a call request (INVITE) for the mobile stations 100B and 100C to the SIP server 400. As described above, the call request (INVITE) of the mobile stations 100B and 100C includes the transmission date and time and the identification information of the mobile stations 100A to 100C.

  In step S <b> 103, the SIP server 400 performs a process for registering group call information in the group call management DB 410. Specifically, the SIP server 400 includes the above-described originating mobile station identification information (identification information of the mobile station 100A), transmission date and time, initial member identification information (identification information of the mobile stations 100A to 100C), The identification information of the participating members (identification information of the mobile station 100A) is stored in association with each other.

  In step S104, the SIP server 400 transmits an SMS transmission request to the mobile stations 100B and 100C to the SMS server 500.

  In step S105, the SMS server 500 transmits an SMS (login request) to the mobile stations 100B and 100C. Here, the SMS (login request) transmitted from the SMS server 500 to the mobile station 100C results in a transmission error.

  In step S106, the mobile station 100B performs login processing to the SIP server 400.

  In step S107, the SIP server 400 transmits the call request (INVITE) of the mobile station 100B received from the mobile station 100A to the mobile station 100B.

  In step S108, the SIP server 400 transmits SIP information (100 Trying) indicating that a call request (INVITE) has been transmitted to the mobile station 100B.

  In step S109, the mobile station 100B transmits SIP information (180 Ringing) indicating that a call is being made to the SIP server 400.

  In step S110, the SIP server 400 transmits the SIP information (180 Ringing) received in step S109 to the mobile station 100A.

  In step S111, the mobile station 100B transmits SIP information (200 OK) indicating a successful response to the SIP server 400. Here, the SIP information (200 OK) includes identification information of the mobile station 100B.

  In step S112, the SIP server 400 updates the group call information in the group call management DB 410. Specifically, the SIP server 400 adds the identification information of the mobile station 100B to the identification information of the participating members registered in step S103 (identification information of the mobile station 100B).

  In step S113, the SIP server 400 transmits the SIP information (200 OK) received in step S111 to the mobile station 100A.

  In step S114, the mobile station 100A transmits SIP information (ACK) to the SIP server 400.

  In step S115, the SIP server 400 transmits the SIP information (ACK) received in step S114 to the mobile station 100B.

  In step S116, a group call is started with the mobile stations 100A and 100B as participating mobile stations. Here, the mobile station 100C is a non-participating mobile station.

  Although not shown, a mobile station that does not respond to a mobile station that cannot log in to the SIP server 400 even if it receives an SMS (login request) or does not respond to a call request (INVITE). Stations are also included.

  Secondly, with reference to FIG. 7 to FIG. 8, a description will be given of processing for the mobile station 100C, which is a non-participating mobile station, to inquire about group call information in which the own station is included in the initial group.

  As shown in FIG. 7, in step S201, the mobile station 100C performs a login process to the SIP server 400 in response to an inquiry process start instruction from the user of the mobile station 100C.

  In step S202, the SIP server 400 transmits SIP information (ACK) indicating that the login process is successful to the mobile station 100C.

  In step S203, the mobile station 100C transmits an inquiry request including the identification information of the mobile station 100C to the SIP server 400.

  In step S204, the SIP server 400 refers to the group call management DB 410 and identifies the originating mobile station identification information, the transmission date and time, the initial member identification information associated with the identification information of the initial member that matches the identification information of the mobile station 100C. Identification information, identification information of participating members, and group call status are extracted.

  For example, when the information shown in FIG. 3 is stored in the group call management DB 410, the SIP server 400 extracts group call information G1 to G3 based on the identification information of the mobile station 100C.

  In step S205, the SIP server 400 transmits the group call information extracted in step S204 to the mobile station 100C.

  In step S206, the mobile station 100C updates the incoming call history stored in the memory 109 based on the received group call information.

  Further, the mobile station 100C generates a display screen as shown in FIG. 8 based on the received group call information. Here, a display screen generated by the mobile station 100C based on the group call information will be described with reference to FIGS. 3 and 8, group call information G1 to G3, originating mobile station identification information G11 and G31, transmission date and time G12, initial member identification information G13, participating member identification information G14, group call status G35 Shall correspond respectively.

  As illustrated in FIG. 8A, the mobile station 100C generates a display screen that displays the group call information G1 to G3 in the order of the transmission date and time. For example, in the group call information G1, the user name associated with the identification information G11 of the caller mobile station and the call date and time G12 are displayed. Like the group call information G3, a telephone number associated with the identification information G31 of the calling-side mobile station, or information 35 indicating that the group call has ended may be displayed.

  The user name is displayed with reference to the address book stored in the memory 109 of the mobile station 100C.

  When the user of the mobile station 100C performs an operation of selecting the group call information G1 and the area A1 (details) on the display screen shown in FIG. 8A, the display screen shown in FIG. 8B or FIG. 8C. Transition to.

  In the display screen shown in FIG. 8B, the user name associated with the identification information G13 of the initial member and the information G14 indicating the participating member are displayed.

  In the display screen shown in FIG. 8C, only the user name associated with the participating member identification information G14 is displayed.

  8A, when the user of the mobile station 100C performs an operation of selecting the group call information G1 and the area A2 (participation) that is information of the group call during a call. (B) When the user of the mobile station 100C performs an operation of selecting the area A3 (participation) and the area A4 (participation) on the display screen shown in (c), the screen transitions to the display screen shown in FIG. .

  In the display screen shown in FIG. 8D, information for confirming whether or not to join the group call on the way is displayed to the user of the mobile station 100C. Here, when the user of the mobile station 100C performs an operation of selecting an area A5 (participation) indicating participation in the group call halfway, the process proceeds to step S207a in FIG.

  As shown in FIG. 7, in step S207a, the mobile station 100C transmits a call request (INVITE) transmission request (INFO) to the mobile station 100A to the mobile station 100A. The mobile station 100A that has received the transmission request (INFO) of the call request (INVITE) for the mobile station 100C transmits the call request (INVITE) of the mobile station 100C to the SIP server 400. The mobile station 100C that has received the call request (INVITE) of the mobile station 100C from the SIP server 400 responds (200 OK) to the SIP server 400 and participates in the group call halfway.

  On the other hand, when the user of the mobile station 100C performs an operation of selecting the group call information G3 and the area A2 (participation) of the terminated group call on the display screen shown in FIG. Transition to the display screen shown in.

  In the display screen shown in FIG. 8 (e), the user of the mobile station 100C displays information for confirming whether to restart the group call for the initial member of the group call that has been completed.

  Here, when the user of the mobile station 100C performs an operation of restarting the group call at the initial member of the group call that has been completed, the process proceeds to step S207b in FIG.

  As shown in FIG. 7, in step S207b, a call for a mobile station (INVITE) of a mobile station other than the local station included in the initial group of the completed group call is transmitted to the SIP server 400, thereby newly sending a group call. (Start.

(Action / Effect)
According to the wireless communication network and the communication method according to the present embodiment, the SIP server 400 (server) includes the identification information of the initial member (initial group mobile station), the identification information of the participating member (participating mobile station), and The group call management DB 410 is stored. The SIP server 400 also participates in participating mobile stations in which the mobile station 100C participates in a group call included in the initial group based on the identification information of the mobile station 100C transmitted from the mobile station 100C (non-participating mobile station). Is extracted from the group call management DB 410.

  Therefore, even if the mobile station 100C does not participate in the group call (non-participating mobile station), the mobile station 100C can participate in the group call included in the initial group by transmitting the identification information of the mobile station 100C. The identification information of the participating mobile stations can be acquired.

  Note that in the wireless communication network and communication method according to the present embodiment, in response to an unparticipating mobile station or a mobile station not included in the initial group in the middle of a group call, or a participating mobile station leaving the group call Thus, the identification information of the participating mobile stations stored in the group call management DB 410 is updated.

  Thus, even in a group call in which participating mobile stations are switched, the mobile station 100C can easily grasp the participating mobile stations.

  Further, according to the wireless communication network and the communication method according to the present embodiment, the mobile station 100C stores the group call information acquired from the SIP server 400 as an incoming call history.

  Therefore, since the mobile station 100C was located outside the circuit switched network area or the packet switched network area at the time when the group call included in the initial group was started, the mobile station 100A (the originating mobile station) Even if the call request (INVITE) cannot be received, the incoming call history of the group call included in the initial group can be retained by the own station.

  Furthermore, the mobile station 100C can specify a participating mobile station to which a transmission request (INFO) of a call request (INVITE) to the mobile station 100C should be transmitted based on the incoming call history. The participating mobile station that has received the transmission request (INFO) of the call request (INVITE) for the mobile station 100C transmits the call request (INVITE) for the mobile station 100C. Thus, by being invited from the participating mobile stations, the mobile station 100C can participate in the group call halfway.

  In addition, based on the incoming call history, the mobile station 100C generates a call request (INVITE) (start request) using identification information of mobile stations other than the mobile station included in the initial group of the ended group call. The group call can be newly started by making a call.

  In addition, according to the wireless communication network and the communication method according to the present embodiment, the mobile station 100C displays the group call information acquired from the SIP server 400.

  Therefore, the user of the mobile station 100C can determine whether or not to join the group call halfway after confirming the user of the participating mobile station currently participating in the group call. Further, the user of the mobile station 100C can participate in the ongoing group call or start a group call that has already been completed in accordance with the display screen, thereby improving user convenience. it can.

(Other embodiments)
In the present embodiment, the case where SIP is used as the communication protocol has been described. However, the present invention is not limited to such a case, and there may be other communication protocols capable of realizing the operation of the first embodiment. For example, the present invention can also be applied when other communication protocols are used.

  For example, in the above-described embodiment, the inquiry request from the mobile station 100C has been described as being directly transmitted to the SIP server 400 using the SIP message or the like. However, the inquiry request from the mobile station 100C may be transmitted to the SIP server 400 via the SMS server 500 using, for example, a short message service provided by the SMS server 500. It is also possible to use an E-MAIL service or the like.

  Similarly, the group call information transmitted from the SIP server 400 may also be transmitted using the short message service or E-MAIL without being directly transmitted to the mobile station 100C.

  In the above-described embodiment, the group call information transmitted from the SIP server 400 includes the caller mobile station identification information, the call origination date and time, the initial member identification information, the participating member identification information, and the group call. Although described as including all statuses, any one of them or a combination of them may be used.

  In the above-described embodiment, the servers provided in the wireless communication network 1 are the SMS server 500 and the SIP server 400, but are not limited thereto. Specifically, the wireless communication network 1 may include a group call management server that manages group calls in addition to the SMS server 500 and the SIP server 400. In this case, the group call management DB 410 provided in the SIP server 400 may be provided in the group call management server.

  Further, the definition of the group call is not limited to the above embodiment. For example, the present invention can be applied to a case where a mobile station newly requested during a group call cannot participate / cannot participate as in the above-described embodiment, and inquires later.

  As mentioned above, although an example of the present invention has been described, it is merely a specific example, and the present invention is not particularly limited, and the specific configuration and the like of each part can be appropriately changed in design. In addition, the configuration of each embodiment and the configuration of each modified example can be combined. In addition, the operation and effect of each embodiment and each modification are merely a list of the most preferable operations and effects resulting from the present invention, and the operation and effect according to the present invention are described in each embodiment and each modification. It is not limited to the ones.

1 is an overall schematic configuration diagram of a wireless communication network according to an embodiment of the present invention. It is a block block diagram of the SIP server which concerns on embodiment of this invention. It is a figure which shows an example of group call management DB which concerns on embodiment of this invention. It is a block block diagram of the mobile station 100 which concerns on embodiment of this invention. It is a block block diagram of CPU of the mobile station 100 which concerns on embodiment of this invention. FIG. 10 is a sequence diagram showing an operation in which the mobile station 100A starts a group call in the wireless communication network according to the embodiment of the present invention. FIG. 10 is a sequence diagram showing an operation in which the mobile station 100A starts a group call in the wireless communication network according to the embodiment of the present invention. It is a figure which shows the display screen of 100 C of mobile stations which concern on embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Wireless communication network, 100A-100C ... Mobile station, 101 ... Antenna, 102 ... Converter, 103 ... Power amplifier, 104 ... Voice input / output part, 104a ... Microphone, 104b ... Speaker, 105 ... Video input / output part, 105a ... Camera, 105b ... Display section, 106 ... Codec section, 106a ... Audio codec section, 106b ... Video codec section, 107 ... Baseband processor, 108 ... Operation section, 109 ... Memory, 110 ... CPU, 111 ... Group call processing section , 112 ... inquiry processing unit, 113 ... incoming call history update unit, 114 ... halfway participation processing unit, 200a, 200b ... base station, 300a ... packet switching network, 300b ... circuit switching network, 400 ... SIP server, 410 ... call control processing , 410 ... group call management DB, 420 Call control processing unit, 430 ... Group registration unit, 440 ... Search unit, 450 ... Inquiry processing unit, 500 ... SMS server, A1 to A5 ... Area, G11, G31 ... Identification information of originating mobile station, G12 ... Date of transmission, G13 ... Initial member identification information, G14 ... Participating member identification information, G1 to G3 ... Group call information, G35 ... Group call status

Claims (5)

When a group call is started by specifying a plurality of members, the members who participate in the group call among the designated members are managed, and the members who do not participate in the group call among the designated members Upon receiving an inquiry of a member participating in the group call, based on the information of the managed group call participating member, the member who made the inquiry is associated with the designated member, and the group A group call notification method that provides information about members participating in a call. A transmitting means for transmitting a request for inquiring whether or not a group call specifying the own station is started, using identification information for identifying the own station;
Obtaining means for obtaining information relating to a group call designating the local station in response to the inquiry request transmitted by the transmitting means;
Display means for displaying an initial member of the group call based on information on the group call specifying the local station acquired by the acquisition means;
A mobile station comprising: A transmitting means for transmitting a request for inquiring whether or not a group call specifying the own station is started, using identification information for identifying the own station;
Obtaining means for obtaining information relating to a group call designating the local station in response to the inquiry request transmitted by the transmitting means;
And a storage means for storing information of the incoming call history,
The acquisition unit is moved you and to store in the memory means information relating to the group call that specifies the own station acquired in response to the query request as a received call history Dokyoku. Characterized by comprising calling means for generating a call for starting a new group call using information related to the group call specifying the local station stored in the storage means as an incoming call history. The mobile station according to claim 3 .   A mobile station that has not received a call request for a group call,
  A transmitting means for transmitting a request for inquiring whether or not a group call specifying the own station is started, using identification information for identifying the own station;
  Obtaining means for obtaining information relating to a group call designating the local station in response to the inquiry request transmitted by the transmitting means;
  Display means for displaying information about the group call specifying the local station acquired by the acquisition means;
  A mobile station comprising:

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